Sentences with phrase «grasslands by»

This practice restores degraded grasslands by using livestock as a proxy for the wild herds that the great plains and savannas of the world evolved with.

So to hope that grasslands by themselves could offset even some of this one looming source for atmospheric carbon is clearly (and unfortunately) not realistic.

I was told to try the Grasslands by Acana — but then what I read about that one is that it is not recommended for cats with sensitive digestive issues which our cat obviously has.

A Lancaster University - led team of scientists from the UK, Netherlands and Germany has produced new evidence that increasing plant species diversity can protect soil in grasslands by improving soil structure, maintaining its overall health.

He points to research that shows that mammoths and other large herbivores trampling across the ancient Arctic ecosystems helped maintain the grasslands by knocking down trees and spreading grass seeds in the dung.

Specifically, these results predict a loss of 15 to 30 per cent of temperate grasslands by the end of the century with a substantial increase in deep soil drought conditions.

Two fields will be connected to create 60 acres of unbroken grassland by removing a hedgerow of pine trees and invasive species.

A mammoth, for example, would already have a home — Pleistocene Park in Siberia, tundra turned to fertile grassland by Sergey Zimov of the Russian Academy of Science.

Over two years of field experiments in the south west the team demonstrated that the hybrid, named Festulolium, reduced water runoff from agricultural grassland by up to 51 per cent compared to a leading UK nationally - recommended perennial ryegrass cultivar and by 43 per cent compared to meadow fescue.

Not exact matches

(Incidentally, we don't know how many people died in the Great Leap Forward, piled up in village ditches or abandoned on empty grasslands: the 16.5 million once given in official tolls or the 45 million estimated by some historians.)

To this end, the soil — from which our nourishment comes — must be carefully husbanded by the use of the many techniques now well understood by scientific farmers, such as proper drainage and irrigation, contour plowing, crop rotation, fertilization, and preservation of forests and grassland.

By the time the population had reached 4 billion in 1976 the per capita production of forest wood and the products of grasslands (beef, mutton and wool) began to decline and have continued that trend ever since.

All the resources used by humans, with the exception of minerals and petroleum, are dependent upon four ecological systems: grasslands, croplands, forests and fisheries.

Meanwhile, new reports in the United States showed that two million acres of native grasslands have been converted to corn and soy monocultures in the past five years alone, driven in part by government subsidies and targets for the ethanol industry.

On the lee slope of Mauna Kea, where the grasslands burnished by the sun are interspersed with brush and clumps of mamani trees, public hunting grounds stretch from 6,000 feet elevation up over the volcanic rubble that caps Mauna Kea at 13,800 feet.

At Canoe Meadows, two fields will be connected to create 60 acres of unbroken grassland this fall by removing a hedgerow of pine trees and invasive species.

Mass Audubon's Bird Conservation team has developed an informative document that outlines best management practices for nesting grassland birds for fields owned by municipalities, land trusts, private landowners, and conservation groups.

[45] Designed by Theodosia Salome Okoh; the red represents the blood that was shed towards independence, the gold represents the industrial minerals wealth of Ghana, the green symbolises the rich grasslands of Ghana, and the black star is the symbol of the Ghanaian people and African emancipation.

At 9 a.m., Commissioner MaryEllen Elia and Regent Judith Johnson will tour Career and Technical Education programs at the Center for Career Services, followed by a tour of Pocantico Hills Central School, 65 Grasslands Road, Valhalla.

In some regions, greening could be caused by species change, with greener invasive plants replacing indigenous ones or bushes encroaching on grasslands that are used to graze cattle, Wang said.

By the late 19th century, elephants in the area had been hunted away, causing grasslands to become overgrown woodlands and the number of ungulate prey to decline.

I saw patches of grassland turned sandy and beachlike, and huge curtains of dust raised by strong winds.

«There is a huge imbalance between the carbon lost by plowing up a hectare [2.47 acres] of forest or grassland from the benefit you get from biofuels.»

By looking at 25 years of data on the Konza Prairie Biological Station, Allison Veach, doctoral student in biology, Muncie, Indiana, and Walter Dodds, university distinguished professor of biology, are researching grassland streams and the expansion of nearby woody vegetation, such as trees and shrubs.

The researchers — led by Brett Sandercock, professor of biology — discovered that wind turbines have little effect on greater prairie chickens, and that these grassland birds are more affected by rangeland management practices and by the availability of native prairie and vegetation cover at nest sites.

A team led by Thomas Stohlgren of the U.S. Geological Survey's Biological Resources Division decided to revisit the problem by comparing two biomes — temperate grasslands and mountains — at several spatial scales.

One of the most important exoplanetary biosignatures is a specific reflection pattern on the land surface named «red - edge», which is caused by vegetation such as forests and grasslands.

60 %: grasslands degraded due to overgrazing by livestock, invasion by alien species, or conversion to agriculture, resulting in a rapid decline of native flora and fauna

A joint paper presented to the London conference by Austrian researcher Bernard Schlamadinger and US colleague Gregg Marland showed this can be a good medium term strategy if fast growing trees are used to replace grassland.

According to analyses that have been published in Science and carried out by the California Air Resources Board, corn - based ethanol is actually worse than gasoline, mainly because growing more corn for ethanol forces farmers to clear additional grasslands and forests to grow food crops.

The results suggest that climate change will convert much of the area currently occupied by temperate grasslands and deserts to subtropical vegetation with effects on associated wildlife and human populations.

A new study, led by University of Minnesota College of Biological Sciences researcher Eric Seabloom, addresses that gap, drawing on data collected at 64 grassland sites in 13 countries.

The soil was taken from either a heathland — rolling hills dominated by heather and small shrubs — or a grassland.

What's more, when governments and nonprofit organizations try to bring back grasslands, forests, and other ecosystems destroyed by agriculture and other human uses, they are often disappointed: Restoration can take decades.

In Africa, elephants (Loxodonta africana) mainly browse woody species, changing the landscape by pushing over, breaking, or uprooting trees, creating openings in the forest and helping maintain grasslands.

Lister explains that climate change could be to blame for the mammoths» demise, as their range shrank when grassland habitats were replaced by forests.

Global warming won't just melt ice caps; it could create whole new biomes — major ecosystem types like forest, desert, grassland, and tundra — say climatologists led by John Williams at the University of Wisconsin at Madison.

Native grasslands everywhere are being replaced by farms and pastures.

After all, a new study carried out by PhD student Debra Zuppinger Dingley reveals that in grassland plants the yields of diverse plant communities are larger than those of monocultures.

Tens of thousands of the formations — bare patches of soil, 2 to 12 meters in diameter — freckle grasslands from southern Angola to northern South Africa, their perimeters often marked by a tall fringe of grass.

People could have been moving through the corridor long before it was capable of hosting the kind of extensive grassland bison depend on, perhaps by following and hunting less ecologically demanding waterfowl, he says.

Five of the six infected ticks in Richmond Park were found in bordering woodland, and one in open grassland, which are the types of vegetation most frequented by the public.

«The data was collected as part of a programme supported by the Deutsche Forschungsgemeinschaft in 150 grasslands across Germany, the so called «Biodiversity Exploratories»,» says Professor Wolfgang Weisser of the Chair for Terrestrial Ecology at the Technical University of Munich (TUM)-- «it constitutes the most extensive ecological sampling in Europe.»

A 60 - strong research team, led by Dr. Santiago Soliveres from the University of Bern, therefore studied all groups in a grassland food chain for the first time.

By munching grasses most other plant - eaters consider not worth the effort, the insect thrives in overgrazed grasslands until its populations swell so much that they move onto crops and pastures, wreaking havoc on local farmers.

«Grazed lands play a major, essential role in grassland bird conservation in South America, and this important research reveals that specialized birds may be limited by habitat quality.

When grasslands feature a wide array of plant species, they provide a variety of benefits for humans and animals, including enhanced carbon storage capacity that can be quantified economically, according to a new scientific paper co-written by a University of Wyoming researcher.

The team found that grasslands, savannas and shrublands were most affected by biodiversity loss, followed closely by many of the world's forests and woodlands.

«Although birds in this study were shown to compensate by switching to other seed types, the findings suggest that the capacity of grazed lands to support similar numbers of birds as ungrazed lands may be compromised,» according to the Vermont Center for Ecostudies» Rosalind Renfrew, an expert on grassland bird conservation who was not involved in the study.

Farmers who fertilise grassland with treated sewage sludge are required by the Department of the Environment to wait three weeks before allowing animals to graze.